Cutting insert



FIG. 1 is a perspective view from the top, front, and left of a cutting insert; the bottom, rear, and right perspective is identical, showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a front elevational view thereof. 

CLAIM The ornamental design for a cutting insert, as shown. 